CN101026317B - Electric machine - Google Patents
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- CN101026317B CN101026317B CN2007100053174A CN200710005317A CN101026317B CN 101026317 B CN101026317 B CN 101026317B CN 2007100053174 A CN2007100053174 A CN 2007100053174A CN 200710005317 A CN200710005317 A CN 200710005317A CN 101026317 B CN101026317 B CN 101026317B
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K3/00—Details of windings
- H02K3/04—Windings characterised by the conductor shape, form or construction, e.g. with bar conductors
- H02K3/28—Layout of windings or of connections between windings
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K21/00—Synchronous motors having permanent magnets; Synchronous generators having permanent magnets
- H02K21/12—Synchronous motors having permanent magnets; Synchronous generators having permanent magnets with stationary armatures and rotating magnets
- H02K21/14—Synchronous motors having permanent magnets; Synchronous generators having permanent magnets with stationary armatures and rotating magnets with magnets rotating within the armatures
- H02K21/16—Synchronous motors having permanent magnets; Synchronous generators having permanent magnets with stationary armatures and rotating magnets with magnets rotating within the armatures having annular armature cores with salient poles
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K21/00—Synchronous motors having permanent magnets; Synchronous generators having permanent magnets
- H02K21/12—Synchronous motors having permanent magnets; Synchronous generators having permanent magnets with stationary armatures and rotating magnets
- H02K21/22—Synchronous motors having permanent magnets; Synchronous generators having permanent magnets with stationary armatures and rotating magnets with magnets rotating around the armatures, e.g. flywheel magnetos
- H02K21/222—Flywheel magnetos
Abstract
The invention provides en electric machine. The invention obtains an electric machine capable of reducing an eddy current loss generated in a field magnetic pole while reducing cost. In a rotating electric machine having the number of magnetic poles P of the field magnetic pole 2 P=10 and the number of the teeth 6 Q of an armature 1 Q=12, when a winding wound to the same tooth 6 is expressed by (/), three-phase by U, V, W and winding polarity by +, -, the windings 7a, 7b wound to the teeth 6 are arranged in the following order: (U+/U+)(U-/V+)(V-/V-)(W-/V+)(W+/W+)(W-/U+)(U-/U-)(U+/V-)(V+/V+)(W+/V-)(W-/W-)(W+/U-). This configuration can reduce components lower in degree than the synchronous component of an armature magneto-motive force. Thereby, the eddy current flowing in the field magnetic pole can be reduced with the resultant reduction of the eddy current loss in the field magnetic pole.
Description
Technical field
The present invention relates to electric machineries such as electric rotating machine or linear electric machine, relate to the technology that is reduced in the eddy-current loss that takes place in the excitation pole.
Background technology
Current, be applied in the various uses by the electric rotating machine that possesses the excitation pole that has a plurality of permanent magnets and constitute with the armature of concentrating the armature winding that winding twines.Wherein concentrating winding is to concentrate the structure that twines winding on the pole shoe of armature, owing to the automatic winding mode of production prosperity of being undertaken by machinery, is that adopt in a large number at the center with miniature motors such as servo purposes therefore.In such micro-machine, because copper loss, iron loss, mechanical loss occupy the major part of loss, therefore the eddy-current loss that takes place in excitation pole under the situation does not mostly become problem.
On the other hand, in the high capacity motor of exceedance kW, use the armature that possesses the armature winding that twines with distributed winding so far, adopt the necessity height of the little concentrated winding of coil end.For example, in the such motor of the platform of hoist engine that directly drives elevator or work mechanism, from saving the viewpoint in space, the miniaturization of coil end requires very big.
Yet in the large-scale electric rotating machine of exceedance kW, the eddy-current loss that takes place in excitation pole can not be ignored in the integral body loss.And then in recent years, the magnetic pole that the such remanence of rare earth element magnet and the high high-performance magnet of coercive force are utilized as the excitation pole of large-scale electric rotating machine energetically.For example, the conductance height of the permanent magnet of Nd-Fe-B series, comparing with the permanent magnet of ferrite series has the feature that is easy to flow through current vortex.Because the eddy-current loss in the excitation pole, remove lower efficiency beyond, the temperature that also exists excitation pole rises and causes the such problem of demagnetization of magnet.In addition, even without reaching demagnetization, but along with temperature rising remanence reduces, its result reduces based on the magnetic flux of magnet.Therefore, in order taking place and the identical output of state that does not exist temperature to rise, need to flow through more armature supply, also to exist the copper loss that is produced by this electric current to increase, efficient reduces such problem.
In order to reduce eddy-current loss, constitute iron core with the lamination steel plate, the armature winding of armature is made distributed winding, suppress the high order harmonic component in the magnetic field of armature supply generation.In 1 (spy opens flat 8-289491 communique) of patent documentation, put down in writing and constituted iron core with the lamination steel plate, the iron core of lamination is made under the situation of a formation excitation pole,, suppressed the eddy-current loss in the excitation pole by seeking the electric insulation of the stack direction between the lamination steel.
In addition, in patent documentation 2 (speciallyying permit No. 3280351), disclose and the iron core of excitation pole has not been made under the situation of lamination steel plate, become and divide its iron yoke, reduced the method for eddy-current loss by the passage of breaking off current vortex with piece shape iron yoke piece.
Summary of the invention
The problem that invention will solve
As mentioned above, in the existing electric machinery that possesses permanent magnet, in order to reduce the eddy-current loss of excitation pole, proposed the iron yoke of excitation pole is made stromatolithic structure, the perhaps structure of divided block shape iron yoke, if but made stromatolithic structure, then exist would to need very big mould, and must import equipment investment such as large-scale stamping machine and become expensive problem points.In addition, if the iron yoke of divided block shape, then existing to remove to cause being accompanied by increases operation that number of components causes and increases beyond the cost that produces raises, because the insulation thickness between the piece shape iron yoke of being divided is inhomogeneous, magnetic flux density in the magnetic gap of excitation pole and armature is inhomogeneous, brings noise or shakes such problem.
In addition, armature is being made under the situation of distributed winding, as mentioned above, had the big problem of coil end.
The present invention finishes in order to eliminate above problem points, when purpose is to be reduced cost, can be reduced in the electric machinery of the eddy-current loss that takes place in the excitation pole.
Be used to solve the method for problem
A kind of electric machinery, this electric machinery possesses armature and the excitation pole that disposes, relatively moves along being driven with the rectangular direction of the direction of above-mentioned magnetic gap length through magnetic gap, and then, above-mentioned armature possesses: armature core, have from the direction of above-mentioned magnetic gap length and give prominence to, along a plurality of pole shoes of above-mentioned moving direction with predetermined interval formation; And a plurality of armature winding, on above-mentioned each pole shoe, twine with concentrated winding, flow through each phase current of three-phase alternating current, above-mentioned excitation pole possesses: along the magnetic pole of the predetermined quantity of above-mentioned moving direction configuration, described electric machinery is characterised in that: comprise the pole shoe of a plurality of windings that twine the mutual out of phase electric current flow through above-mentioned three-phase alternating current in above-mentioned a plurality of pole shoes, so that the composition of the low number of times of the synchronous number of times of the ratio of the armature magnetomotive force that takes place from above-mentioned armature winding when reducing above-mentioned driving and above-mentioned actuating speed.
The effect of invention
The present invention as mentioned above, owing on same pole shoe, twine a plurality of windings that flow through the mutual out of phase electric current of three-phase alternating current, so that reduce the armature magnetomotive force taken place particularly than with the composition of the synchronous low number of times of number of times of actuating speed, therefore do not need the iron yoke of expensive excitation pole iron yoke of lamination or divided block shape, can be reduced in the eddy-current loss that takes place in the excitation pole with low cost.
Description of drawings
Fig. 1 is the profile of the structure of the electric machinery in the expression the invention process form 1.
Fig. 2 is a profile of representing the existing power mechanical structures that illustrates as a comparative example.
Fig. 3 represents that the magnetomotive force that the armature of electric machinery in the past produces distributes.
Fig. 4 represents magnetomotive each number of times composition that the armature of electric machinery in the past produces.
Fig. 5 represents that the magnetomotive force that the armature of the electric machinery in the invention process form 1 produces distributes.
Fig. 6 represents magnetomotive each number of times composition that the armature of the electric machinery in the invention process form 1 produces.
Fig. 7 is the synthetic polar plot of 1 composition in magnetomotive space that illustrates that the armature of electric machinery in the past produces.
Fig. 8 is the synthetic polar plot of 1 composition in magnetomotive space that produces of the armature of the electric machinery in the explanation the invention process form 1.
Fig. 9 is the profile of the structure of the electric machinery in the expression the invention process form 2.
Figure 10 represents magnetomotive each number of times composition that the armature of the electric machinery in the invention process form 2 produces.
Figure 11 is the profile of the structure of the electric machinery in the expression the invention process form 3.
Figure 12 represents magnetomotive each number of times composition that the armature of the electric machinery in the invention process form 3 produces.
Figure 13 is the profile of the structure of the electric machinery in the expression the invention process form 4.
Figure 14 represents magnetomotive each number of times composition that the armature of the electric machinery in the invention process form 4 produces.
Figure 15 is the profile that part is represented the structure of the electric machinery in the invention process form 6 enlargedly.
Figure 16 is the profile that part is represented the structure of the electric machinery in the invention process form 7 enlargedly.
Figure 17 is the profile of the structure of the electric machinery in the expression the invention process form 8.
Figure 18 is the profile of the structure of the electric machinery in the expression the invention process form 9.
Embodiment
Example 1
Fig. 1 is the profile of the structure of the electric machinery in the expression the invention process form 1.As the example of electric machinery, represent the electric rotating machine of 3 phases, 10 utmost points, 12 pole shoes here.Armature 1 and excitation pole 2 process magnetic gaps 10, rotation is disposed by retaining members such as bearings freely relatively.Excitation pole 2 has excitation pole unshakable in one's determination 3 that is installed on the axle 9 and the permanent magnet 4 that is fixed on the excitation pole iron core 3.N utmost point permanent magnet 4a and S utmost point permanent magnet 4b respectively have 5 pairs, add up to 10 magnetic poles.In addition, in Fig. 1, constitute a magnetic pole by a permanent magnet 4a (4b), but irrelevant with the concrete structure mode of permanent magnet.In addition, configuration permanent magnet 4a, 4b on the surface of excitation pole iron core 3, and also can constitute the inside that is embedded to excitation pole iron core 3.
Here, being illustrated in mutually in (/) of twining on a pole shoe, in addition, u+ and U one expression are twined polarity (winding direction) mutually on the contrary.But irrelevant with the configuration sequence that is wrapped in 2 winding 7a, 7b on the same pole shoe, for example, also can become (V-/V+) to the position configuration that is recited as (U+/V-), make position opposite radially.
On the other hand, Fig. 2 represents the profile of the electric rotating machine of 3 phases, 10 utmost points, 12 pole shoes in the past.On a pole shoe 6, twined a winding 7 in the past.Separate, the polarity of winding according to clockwise direction, becomes (U-) (V-) (V+) (W+) (W-) (U-) (U+) (V+) (V-) (W-) order of (W+) representing of usefulness (U+) from the paper upper end.
After flowing through the three-phase current that phase difference is 2 π/3 mutually in the winding 7 of the electric rotating machine of representing at Fig. 2, produce the armature magnetomotive force in the magnetic gap 10, have as shown in Figure 3 distribution in certain time.
Because the excitation pole 2 of the electric rotating machine represented of Fig. 2 is 10 utmost points, therefore be the composition in space 5 times with the synchronous armature magnetomotive force of the rotation of excitation pole 2.Fig. 3 becomes the distribution of essentially rectangular ripple, comprises a large amount of compositions synchronously high order harmonic component composition (asynchronous composition) in addition.These high order harmonic component compositions can be obtained by the distribution of the armature magnetomotive force of Fig. 3 is launched into the Fourier series.
Fig. 4 represents the result that the Fourier series launches to ask the high order harmonic component composition is carried out in the distribution of armature magnetomotive force.Expression changes into 5 ingredient standards in space as synchronous composition 1.0 situation.According to this figure, the space primary components is about 0.36, and 7 compositions in space are about 0.71.
As 5 compositions in space of the synchronous composition of armature magnetomotive force owing to move along circumferencial direction, if therefore watch then can think static from excitation pole 2 with the speed identical with the rotation of excitation pole 2.That is owing to there is not the change of magnetic flux in excitation pole unshakable in one's determination 3 or permanent magnet 4, therefore current vortex does not take place.Yet, if watching from excitation pole 2, asynchronous composition can regard motion as, therefore current vortex takes place owing to have the change of magnetic flux.
At armature winding is to concentrate under the situation of winding, and the number of times of general armature magnetomotive force composition rotates in the magnetic gap 10 highfield more more, with excitation pole 2 interlinkage does not take place.In other words, the low more armature magnetomotive force of number of times more with excitation pole 2 interlinkages, produce many more current vortexs.Because the magnetomotive force of low order does not take place, so this problem is to concentrate the distinctive problem of winding in distributed winding.
The electric rotating machine of the invention process form 1 was as illustrating among Fig. 1 in front, on same pole shoe 6, twine 2 winding 7a, 7b that flow through U, V, the mutual out of phase electric current of W three-phase alternating current, so that the synchronous composition that reduces than armature magnetomotive force is the composition of the low number of times of 5 compositions in space.
Fig. 5 is the distribution map along circumferencial direction of the armature magnetomotive force under Fig. 1 situation, and Fig. 6 distributes the armature magnetomotive force of this Fig. 5 to be launched into the various compositions that the Fourier series is obtained, and is identical with the situation of Fig. 4, and 5 ingredient standards in space are turned to 1.0.
According to Fig. 6,1 composition in space is about 0.10, compares comparatively below 1/3 times with 0.36 of example (Fig. 4) in the past.7 compositions in space with in the past routine identical be 0.71.
Fig. 7 and Fig. 8 are the synthetic of the explanation space primary components of asking armature magnetomotive force, polar plot when being the whole magnetomotive composite value that is generated by the electric current of U phase is here constructed corresponding with the winding of Fig. 1 of the winding structure of Fig. 2 of example in the past and the invention process form 1 respectively.In addition, the both as 1.0, the amplitude of 1 composition in space at this moment is 0.348 in Fig. 7 in the past, is 0.373 in Fig. 8 of example 1 the amplitude of 5 resultant vectors in space.
Known to from two figure, by on a pole shoe of armature, twining the winding of 2 concentrated windings, the vector in space 1 time is disperseed, its resultant vector is reduced than example in the past.
In this case, eddy-current loss is because square proportional with magnetic field approx, therefore square proportional with armature magnetomotive force.Thereby, in this example 1, the eddy-current loss of expressing the excitation pole that 1 composition in space by armature magnetomotive force causes can reduce in the past below 1/9 times.
Like this, according to this example 1, can reduce the asynchronous composition of excitation pole magnetomotive force with armature magnetomotive force and be the composition of number of times lower in the high order harmonic component composition than synchronous composition.Thereby,, therefore can reduce the eddy-current loss of excitation pole owing to can reduce the current vortex that in excitation pole, flows through.Like this, owing to can reduce current vortex in essence ground, therefore do not need such in the past lamination excitation pole iron yoke or divided block shape iron yoke, thereby can reduce cost that causes by equipment investment or the cost that causes by the number of components increase.
Example 2
In the example 1 in front, as an example, the electric rotating machine of 10 utmost points, 12 pole shoes has been described, Fig. 9 represents the electric rotating machine of 20 utmost points, 24 pole shoes.Such number of poles P and pole shoe are counted Q and using P=5n when n being taken as more than or equal to 2 even number, under the situation that Q=6n represents, separate, the polarity of the winding that on each pole shoe 6, twines from the paper upper end along clockwise direction, repeatedly (U+/U+) (U-/V+) (V-/V-) (W-/V+) (W+/W+) (W-/U+) (U-/U-) (U+/V-) (V+/V+) (W+/V-) (W-/W-) (W+/U-).
In this case, each time composition of armature flux gesture is divided into shown in Figure 10.That is,, then become 0.10 n/2 time if a synchronous composition is that (5n/2) inferior armature magnetomotive force is standardized as 1.0, identical with example 1, can reduce eddy-current loss.
Example 3
Figure 11 represents the electric rotating machine of the invention process form 3, is the electric rotating machine of 3 phases, 14 utmost points, 12 pole shoes.Electric rotating machine as 14 utmost points is also identical with armature 1, and space number of times 7 times is moved as synchronous composition.If more vague generalization, then number of poles P and pole shoe are counted Q and using P=7n when n being taken as more than or equal to 2 even number, and under the situation that Q=6n represents, composition is 7n/2 time synchronously.
Figure 12 represents each number of times composition of armature magnetomotive force in this case.Among this figure, also recorded and narrated the magnetomotive force of the armature generation of electric rotating machine in the past simultaneously.In the figure, n/2 composition is more routine littler than in the past as can be known.That is, identical with example 1, can reduce eddy-current loss.
Example 4
Figure 13 represents the electric rotating machine of the invention process form 4, and as an example, expression 3 is the electric rotating machine of 10 utmost points, 12 pole shoes mutually.In the figure, the phase sequence of winding 7 is identical with the example of front 1～3, but number of turn difference.
Promptly, in the winding 7, make 2 windings being wrapped on the same pole shoe (for example with winding 7c, the 7d of phase time, (U+/U+) that is equivalent to Figure 13 the top) the number of turn is respectively under the situation of T, winding 7e, 7f when making 2 winding out-phase that are wrapped on the same pole shoe (for example, with from Figure 13 topmost one conterclockwise (U-/V+) suitable) the number of turn become about 2T/ respectively
If constitute like this, the equal and opposite in direction of the composite value of the armature magnetomotive force in all pole shoes then, its result, magnetomotive one-tenth that armature 1 produces is divided into shown in Figure 14.
Figure 14 carries out vague generalization and represents, that is, expression number of poles P and pole shoe are counted Q and using P=5n, the armature magnetomotive force under the situation that Q=6n represents when n being taken as more than or equal to 2 even number.In the figure, n/2 composition is almost 0.That is, the current vortex of n/2 composition taking place hardly, can further reduce eddy-current loss than example 1～3.
Even number of poles P and pole shoe that above content illustrated in the example 3 are in front counted Q P=7n, under the situation that Q=6n represents, also can fully similarly be suitable for, play identical effect.
Example 5
In the invention process form 5, it is long-pending with the cross-sectional area of conductor of long-pending 2 winding 7e, the 7f greater than on 2 windings that are wrapped on the same pole shoe time of the cross-sectional area of conductor of winding 7c, the 7d of phase time to constitute 2 windings that are wrapped on the same pole shoe that make in the example 4 in front.By such formation, owing to can improve the area ratio/occupancy ratio of conductor (copper), therefore can reduce copper loss for groove 8, become high efficiency electric rotating machine.
It is desirable to, make the long-pending cross-sectional area of conductor that becomes winding 7e, 7f of the cross-sectional area of conductor of winding 7c, 7d long-pending about 2/
Doubly, (cross-sectional area of conductor of monomer long-pending * number of turn) becomes with total cross-sectional area of conductor of winding 7e, 7f is long-pending and equates to make total cross-sectional area of conductor of winding 7c, 7d long-pending.
Example 6
Figure 15 represents the part enlarged drawing of the electric rotating machine of the invention process form 6.In the example 1～5 in front, be wrapped in 2 windings (7a, 7b etc.) on the same pole shoe along the configuration of the axially-aligned of pole shoe, and in this example 6, as shown in figure 15, the winding 7i of the winding 7h of all sides and outer circumferential side configuration in being divided into.Even constitute like this, also can fully similarly obtain in the effect shown in the example 1～5.That is, under the situation that is suitable for the present application, with 2 structure-irrelevants how winding disposes in groove 8 that are wrapped on the same pole shoe.
Example 7
Figure 16 represents the part enlarged drawing of the electric rotating machine of the invention process form 7.In the example 1～6 in front, each pole shoe 6 is all used 2 formations such as winding 7a, 7b, and in this example 7, the two-phase that is wrapped on the same type pole shoe 6 is summarised in together with winding 7a, the 7b of phase time, and as the number of turn monomer winding 7g of 2T.If constitute like this, then, therefore can reduce number of components because the number of winding 7 reduces to 3/4 as a whole, can become low cost.
Example 8
In each above-mentioned example, be the electric rotating machine of inboard for the so-called internal rotor of excitation pole 2, and as the example 8 of the present application, the outside shown in Figure 17 is the electric rotating machine of the so-called external rotor of excitation pole 2, also can use the present invention certainly.
And then the present invention is as electric rotating machine, do not distinguish motor, generator can both be suitable for.
Example 9
The example 9 of the present application that is suitable in the linear electric machine that Figure 18 has been illustrated in the whirler linear expansion.Constitute the even number n that the motor of ring is suitable for more than or equal to 2 and showed number of magnetic poles, pole shoe number as the electric rotating machine of the form example of front, and have as linear electric machine under the situation of end, the natural number that is suitable for more than or equal to 1 shows.
In addition, the armature 11 of the example of Figure 18 is at a mobile side (irrelevant with moving direction), and excitation pole 22 becomes fixes a side, possesses a plurality of magnetic poles according to the displacement of armature 11.Thereby, count Q as its number of magnetic poles P and the pole shoe of the problem of the present application and adopt number in the relative scope that plays the linear electric machine effect at least.Specifically, in the example of Figure 18, with substitution in number of magnetic poles P=5m the P=5 of m=1, pole shoe count substitution among the Q=6m situation of Q=6 of m=1 suitable.In addition, the present invention can be applicable to number of magnetic poles P=7m too, and pole shoe is counted the situation of Q=6m.
Under the situation of linear electric machine, the structure that is wrapped in 2 winding 7a, 7b on each pole shoe 6 is as follows.At first, be as the criterion, imagine following order or repeat the order of following order with the performance that illustrated among the example l in front.
1：(U+/U+)，2：(U-/V+)，3：(V-/V-)，4：(W-/V+)，5：(W+/W+)，6：(W-/U+)，7：(U-/U-)，8：(U+/V-)，9：(V+/V+)，10：(W+/V-)，11：(W-/W-)，12：(W+/U-)。
Here, 1 :～12: be the number that adds for the convenience of following explanation.
And, establish each winding 7a, 7/b winding for separate, the polarity that from the row of said sequence, extracts continuous 6m (being 6) here.Specifically, in Figure 18, the pole shoe of each winding 7a, 7b left end from figure order adopts the 12nd in the above-mentioned row, the mat woven of fine bamboo strips 1～5th to amount to 6 mutual continuous 6 winding constructions (separate, polarity) to right-hand.Certainly,, also can adopt the mat woven of fine bamboo strips 1～6th in the above-mentioned row as each winding, from left end to right-hand be (U+/U+) (U-/V+) (V-/V-) (W-/V+) (W+/W+) (W-/U+).
By making above winding construction, with illustrate in front the example example identical, can reduce armature magnetomotive force and the asynchronous composition of excitation pole magnetomotive force is the composition that is lower than the number of times of synchronous composition in the high order harmonic component.Thereby,, therefore can reduce the eddy-current loss of excitation pole owing to the current vortex that can reduce in excitation pole, to flow through.
Particularly, in linear electric machine, under the situation of armature 11 than excitation pole 22 weak points, if armature 11 moves, then the magnetomotive magnetic flux based on armature 11 does not have the part of interlinkage to become magnetic flux interlinkage sharp.Therefore, in excitation pole excitation pole iron core 33, encourage voltage sharp, become the eddy-current loss bigger than electric rotating machine as the magnetic flux differential.Thereby,, can reduce the magnetic flux of the reason of this eddy-current loss significantly by being suitable for the present invention.
In addition, in Figure 18, make armature 11, make excitation pole 22 fix a side, and under both opposite situations, can be suitable for the present invention too in a mobile side.In addition, being not limited to motor, also can be the situation of bringing into play function as generator, and the present invention can be suitable in the straight motivation that drives along rectilinear direction equally widely, plays identical effect.
In addition, in each variation of the present invention, electric machinery is that the pole shoe of the number of magnetic poles P of excitation pole and armature is counted Q use P=5n when n being taken as more than or equal to 2 even number, Q=6n or P=7n, Q=6n represents, along the circumferential direction rotate driving as whirler, the winding that is wrapped on the same pole shoe is being used (/), three-phase U, V, W, the using mutually of winding+, under the situation of-expression, owing to make the winding that is wrapped on each pole shoe become following order or its repeatedly, therefore can reduce armature magnetomotive force and the asynchronous composition of excitation pole magnetomotive force and be the composition of the low number of times of the synchronous composition of ratio in the high order harmonic component composition.Thereby,, therefore can reduce the eddy-current loss of the excitation pole in the electric rotating machine owing to can reduce the current vortex that in excitation pole, flows through.
(U+/U+) (U-/V+) (V-/V-) (W-/V+) (W+/W+) (W-/U+) (U-/U-) (U+/V-) (V+/V+)(W+/V-) (W-/W-) (W+/U-)
In addition, electric machinery is at the magnetic flux that circulates each other, performance is counted Q as the pole shoe of the number of magnetic poles P of the excitation pole in the relative scope of electric machinery function and armature and use P=5m when m is taken as natural number, Q=6m or P=7m, Q=6m represents, drive along rectilinear direction as straight motivation, the winding that is wrapped on the same pole shoe is being used (/), three-phase U, V, W, the polarity of winding is used+, under the situation of-expression, because from following order or repeat to extract the generic sequence of following order continuous 6m, so can reduce the composition of number of times lower in the high order harmonic component composition as armature magnetomotive force and the asynchronous composition of excitation pole magnetomotive force than synchronous composition as the winding that is wrapped on each pole shoe.Thereby,, therefore can reduce the eddy-current loss of the excitation pole in the straight motivation owing to the current vortex that can reduce in excitation pole, to flow through.
(U+/U+) (U-/V+) (V-/V-) (W-/V+) (W+/W+) (W-/U+) (U-/U-) (U+/V-) (V+/V+)(W+/V-) (W-/W-) (W+/U-)
In addition, the number of turn that is wrapped in this each winding of 2 winding in-phase components on the same pole shoe is being taken as under the situation of T, because the number of turn of this each winding that is wrapped in 2 winding out-phase parts on the same pole shoe is taken as 2T/
Therefore can further reduce the eddy-current loss of excitation pole.
In addition, owing to make the long-pending cross-sectional area of conductor of the cross-sectional area of conductor of this each winding that is wrapped in 2 winding in-phase components on the same pole shoe long-pending big, therefore reduce the copper loss of armature than such each winding that is wrapped in 2 winding out-phase parts on the same pole shoe.
In addition, therefore 2 windings owing to constituted 2 winding in-phase components that are wrapped on the same pole shoe with single winding can reduce number of components and reduce cost.
Claims (6)
1. electric machinery, this electric machinery possess through magnetic gap and dispose, are driven and the armature and the excitation pole that relatively move along above-mentioned magnetic gap, and then,
Above-mentioned armature possesses:
Armature core has from the direction of above-mentioned magnetic gap length and gives prominence to, along a plurality of pole shoes of above-mentioned moving direction with predetermined interval formation; And
A plurality of armature winding with concentrating winding to twine, flow through each phase current of three-phase alternating current on above-mentioned each pole shoe,
Above-mentioned excitation pole possesses:
Along the magnetic pole of the predetermined quantity of above-mentioned moving direction configuration,
Described electric machinery is characterised in that:
The pole shoe that comprises a plurality of windings that twine the mutual out of phase electric current flow through above-mentioned three-phase alternating current in above-mentioned a plurality of pole shoes is so that the composition of the low number of times of the synchronous composition of the armature magnetomotive force that takes place from above-mentioned armature winding when reducing than above-mentioned driving.
2. electric machinery according to claim 1, the number of magnetic poles P of above-mentioned excitation pole and the pole shoe of above-mentioned armature are counted Q and use P=5n when n being taken as more than or equal to 2 even number, Q=6n or P=7n, Q=6n represents, as whirler, be driven in rotation along circumferencial direction, described electric machinery is characterised in that:
When being wrapped in a winding on the same pole shoe with "/", above-mentioned three-phase with U, V, W, winding polarity with+,-when representing, being wrapped in winding on above-mentioned each pole shoe becomes following order or its repeatedly:
“U+/U+”“U-/V+”“V-/V-”“W-/V+”“W+/W+”“W-/U+”“U-/U-”“U+/V-”“V+/V+”“W+/V-”“W-/W-”“W+/U-”。
3. electric machinery according to claim 1, at the magnetic flux that circulates each other, the pole shoe of bringing into play the number of magnetic poles P of the above-mentioned excitation pole in the relative scope of above-mentioned electric machinery function and above-mentioned armature is counted Q and use P=5m when being got m for natural number, Q=6m or P=7m, Q=6m represents, be driven along rectilinear direction as straight motivation, described electric machinery is characterised in that:
When the winding that is wrapped on the same pole shoe is used "/", above-mentioned three-phase U, V, W, twine polarity with+,-when representing, with the winding that twines on above-mentioned each pole shoe as from following order or extract the individual winding of continuous 6m repeatedly the generic sequence of following order:
“U+/U+”“U-/V+”“V-/V-”“W-/V+”“W+/W+”“W-/U+”“U-/U-”“U+/V-”“V+/V+”“W+/V-”“W-/W-”“W+/U-”。
4. according to claim 2 or 3 described electric machineries, it is characterized in that:
The number of turn that to be wrapped in 2 windings on the same pole shoe be this each winding of in-phase component is being taken as under the situation of T, 2 windings being wrapped on the same pole shoe are not taken as for the number of turn of this each winding of in-phase component
5. electric machinery according to claim 4 is characterized in that:
Making the cross-sectional area of conductor of this each winding that is wrapped in 2 winding in-phase components on the same pole shoe, long-pending the cross-sectional area of conductor of this each winding of in-phase component is not long-pending greater than being wrapped in 2 windings on the same pole shoe.
6. according to claim 2 or 3 described electric machineries, it is characterized in that:
These 2 windings that are wrapped in 2 winding in-phase components on the same pole shoe constitute with single winding.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2006042117A JP4745857B2 (en) | 2006-02-20 | 2006-02-20 | Electric machine |
| JP2006-042117 | 2006-02-20 | ||
| JP2006042117 | 2006-02-20 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101026317A CN101026317A (en) | 2007-08-29 |
| CN101026317B true CN101026317B (en) | 2010-08-18 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2007100053174A Expired - Fee Related CN101026317B (en) | 2006-02-20 | 2007-02-14 | Electric machine |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US7605514B2 (en) |
| JP (1) | JP4745857B2 (en) |
| CN (1) | CN101026317B (en) |
| DE (1) | DE102007007578B4 (en) |
Families Citing this family (45)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4440275B2 (en) * | 2007-02-02 | 2010-03-24 | 三菱電機株式会社 | Three-phase rotating electric machine |
| JP5228582B2 (en) * | 2008-04-04 | 2013-07-03 | 三菱電機株式会社 | Permanent magnet type rotating electric machine and electric power steering device using the same |
| WO2009144946A1 (en) * | 2008-05-30 | 2009-12-03 | パナソニック株式会社 | Synchronous motor drive system |
| WO2010013433A1 (en) * | 2008-07-30 | 2010-02-04 | パナソニック株式会社 | Synchronous electric motor |
| DE102008051047B4 (en) * | 2008-10-09 | 2015-07-30 | Feaam Gmbh | Electric machine |
| JP2010104112A (en) | 2008-10-22 | 2010-05-06 | Jtekt Corp | Electric motor and electric power steering apparatus |
| CN101926072B (en) * | 2008-10-28 | 2013-02-06 | 松下电器产业株式会社 | Synchronous motor |
| DE102008054284A1 (en) | 2008-11-03 | 2010-05-06 | Feaam Gmbh | Electric machine |
| DE102008057349B3 (en) * | 2008-11-14 | 2010-07-15 | Feaam Gmbh | Electric machine |
| US7913375B2 (en) * | 2009-01-19 | 2011-03-29 | Sergey Pulnikov | Method for making electrical windings for electrical machines and winding obtained by said method |
| JP5426180B2 (en) * | 2009-01-20 | 2014-02-26 | 富士機械製造株式会社 | Linear motor |
| US20120038238A1 (en) * | 2009-03-11 | 2012-02-16 | Hitachi, Ltd. | AC Generator for Vehicle |
| JP5304427B2 (en) | 2009-05-14 | 2013-10-02 | 株式会社デンソー | Rotating electrical machine drive system |
| EP2284978A1 (en) * | 2009-08-03 | 2011-02-16 | Converteam Technology Ltd | Armature windings |
| DE102009036034B4 (en) | 2009-08-04 | 2011-07-07 | FEAAM GmbH, 85579 | Electric machine |
| JP5510703B2 (en) * | 2009-08-21 | 2014-06-04 | 株式会社デンソー | Rotating electric machine and control system thereof |
| JP2011055619A (en) * | 2009-09-01 | 2011-03-17 | Mitsubishi Electric Corp | Permanent magnet type dynamo-electric machine |
| JP2013165532A (en) * | 2010-05-28 | 2013-08-22 | Mitsubishi Electric Corp | Rotary electric machine |
| CN102377296B (en) * | 2010-08-13 | 2015-12-16 | 台全电机股份有限公司 | Electromotor stator core winding method and structure |
| DE102011011023A1 (en) * | 2011-02-11 | 2012-08-16 | Feaam Gmbh | Electric machine |
| JP5789145B2 (en) * | 2011-07-13 | 2015-10-07 | オークマ株式会社 | Synchronous motor |
| UA109733C2 (en) * | 2011-08-10 | 2015-09-25 | CONTINUOUS ACTION CONTAINER FOR THE TRANSPORT OF HEAVY Bulk OR ARTIFICIAL MATERIALS | |
| DE102011055766A1 (en) * | 2011-11-28 | 2013-05-29 | Dr. Ing. H.C. F. Porsche Ag | Three-phase synchronous machine for power train of motor car, has rotor core having recesses that are multiplied in such way that two layers, preferably three layers of permanent magnets are arranged |
| EP2639938A1 (en) * | 2012-03-16 | 2013-09-18 | Siemens Aktiengesellschaft | Electric drive motor of a motor vehicle with low demagnetisation field against a permanent magnet rotor and motor vehicle with such a drive motor |
| CN102739010B (en) * | 2012-07-09 | 2014-04-09 | 哈尔滨工业大学 | Integer-slot bilayer ring-winding linear electric motor |
| JP2014068497A (en) * | 2012-09-27 | 2014-04-17 | Hitachi Automotive Systems Ltd | Rotary electric machine and electrically-driven power steering device using the same |
| EP2921827B1 (en) | 2012-11-19 | 2019-03-20 | LS Automotive Technologies Co., Ltd. | Stator used in resolvers, and resolver including same |
| DE102012222446A1 (en) * | 2012-12-06 | 2014-06-12 | Robert Bosch Gmbh | Wheel hub machine, single track vehicle |
| WO2014091609A1 (en) | 2012-12-13 | 2014-06-19 | 三菱電機株式会社 | Rotating electrical machine |
| US8829742B2 (en) * | 2013-01-04 | 2014-09-09 | Xinzhang Wu | High efficiency permanent magnet machine |
| JP5956976B2 (en) * | 2013-01-29 | 2016-07-27 | オークマ株式会社 | Three-phase AC motor |
| WO2014167645A1 (en) * | 2013-04-09 | 2014-10-16 | 三菱電機株式会社 | Permanent magnet-type motor and electric power steering apparatus |
| JP5932147B2 (en) * | 2013-05-31 | 2016-06-08 | 三菱電機株式会社 | Multiple multi-phase winding AC rotating electric machine and electric power steering device |
| CN110492825A (en) * | 2014-01-13 | 2019-11-22 | 奥的斯电梯公司 | Delivery system |
| US10523074B2 (en) * | 2014-01-16 | 2019-12-31 | Maestra Energy, Llc | Electrical energy conversion system in the form of an induction motor or generator with variable coil winding patterns exhibiting multiple and differently gauged wires according to varying braid patterns |
| DE102014205084A1 (en) * | 2014-03-19 | 2015-10-08 | Bayerische Motoren Werke Aktiengesellschaft | Electric coil |
| DE102014115929A1 (en) * | 2014-10-31 | 2016-05-19 | Dorma Deutschland Gmbh | door drive |
| CN105515246A (en) * | 2016-01-08 | 2016-04-20 | 广东美芝制冷设备有限公司 | Stator assembly, motor with same, and compressor |
| JP7129612B2 (en) * | 2017-01-18 | 2022-09-02 | パナソニックＩｐマネジメント株式会社 | motor |
| US10707741B2 (en) * | 2017-07-18 | 2020-07-07 | Polaris Industries Inc. | Voltage generator and a method of making a voltage generator |
| CN111130290B (en) * | 2018-10-30 | 2022-01-25 | 安徽美芝精密制造有限公司 | Compressor and synchronous motor thereof |
| JP7103299B2 (en) * | 2019-04-22 | 2022-07-20 | 株式会社デンソー | Rotating electric machine |
| DE102019218607A1 (en) * | 2019-11-29 | 2021-06-02 | Robert Bosch Gmbh | Machine component for an electrical machine |
| JP2022166775A (en) * | 2021-04-21 | 2022-11-02 | 株式会社日本ビデオセンター | Motor or linear motor output control system |
| WO2023099934A1 (en) * | 2021-11-30 | 2023-06-08 | Mkandawire Geoffrey Kwananga | An electric motor with a winding configuration |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6759780B2 (en) * | 2001-05-08 | 2004-07-06 | Delphi Technologies, Inc. | Fractional-slot winding motor |
Family Cites Families (19)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH02142350A (en) | 1988-08-03 | 1990-05-31 | Victor Co Of Japan Ltd | Motor provided with polyphase dc core |
| US5006745A (en) | 1988-08-03 | 1991-04-09 | Victor Company Of Japan, Ltd. | Polyphase direct current motor |
| JPH0748935B2 (en) | 1990-11-30 | 1995-05-24 | 日本ビクター株式会社 | Multi-phase DC motor |
| JPH0690538A (en) | 1992-09-09 | 1994-03-29 | Matsushita Electric Ind Co Ltd | Brushless motor |
| US5691590A (en) * | 1992-10-23 | 1997-11-25 | Nippondenso Co., Ltd. | Alternator with magnetic noise reduction mechanism |
| US5708316A (en) * | 1992-10-23 | 1998-01-13 | Nippondenso Co., Ltd. | Altenator for a vehicle |
| JPH08289491A (en) * | 1995-04-11 | 1996-11-01 | Fuji Electric Co Ltd | Laminated core for electric rotating machine |
| JPH08308195A (en) * | 1995-05-08 | 1996-11-22 | Olympus Optical Co Ltd | Three-phase motor |
| JP3351258B2 (en) * | 1995-09-27 | 2002-11-25 | 株式会社デンソー | AC generator for vehicles |
| JP3564252B2 (en) * | 1997-02-06 | 2004-09-08 | 三菱電機株式会社 | Armature winding |
| JP2000197290A (en) | 1998-12-25 | 2000-07-14 | Hitachi Ltd | Permanent magnet rotary electric machine and electric motor car using the same |
| JP4091197B2 (en) * | 1999-02-15 | 2008-05-28 | 三菱電機株式会社 | Rotating electric machine |
| JP3280351B2 (en) * | 1999-08-04 | 2002-05-13 | 株式会社日立製作所 | Brushless motor |
| JP2001186736A (en) * | 1999-12-24 | 2001-07-06 | Hitachi Ltd | Synchronous reluctance motor and its drive system |
| WO2002037649A1 (en) | 2000-11-02 | 2002-05-10 | Dinyu Qin | Rotor shield for magnetic rotary machine |
| US6788031B2 (en) * | 2001-01-26 | 2004-09-07 | Larry Stuart Pendell | Induction generator system and method |
| US6894413B2 (en) | 2001-12-20 | 2005-05-17 | Mitsubishi Denki Kabushiki Kaisha | Permanent magnet dynamo electric machine, and permanent magnet synchronous generator for wind power generation |
| US20070108863A1 (en) * | 2003-09-30 | 2007-05-17 | Hubert Bischof | Stator for an electrical machine |
| WO2005107040A1 (en) * | 2004-04-28 | 2005-11-10 | Mitsubishi Denki Kabushiki Kaisha | Electric rotating machine |
-
2006
- 2006-02-20 JP JP2006042117A patent/JP4745857B2/en not_active Expired - Fee Related
-
2007
- 2007-01-15 US US11/623,125 patent/US7605514B2/en not_active Expired - Fee Related
- 2007-02-14 CN CN2007100053174A patent/CN101026317B/en not_active Expired - Fee Related
- 2007-02-15 DE DE102007007578.4A patent/DE102007007578B4/en not_active Expired - Fee Related
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6759780B2 (en) * | 2001-05-08 | 2004-07-06 | Delphi Technologies, Inc. | Fractional-slot winding motor |
Also Published As
| Publication number | Publication date |
|---|---|
| DE102007007578A1 (en) | 2007-09-20 |
| US20070194650A1 (en) | 2007-08-23 |
| US7605514B2 (en) | 2009-10-20 |
| CN101026317A (en) | 2007-08-29 |
| JP4745857B2 (en) | 2011-08-10 |
| DE102007007578B4 (en) | 2016-03-10 |
| JP2007221961A (en) | 2007-08-30 |
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